21167358009

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{446597}}^1$

素因数の和:446705

約数の個数: 32

約数和(自身を含む): 33669916416

約数和(自身を除く): 12502558407

約数列:

[1, 3, 7, 21, 37, 61, 111, 183, 259, 427, 777, 1281, 2257, 6771, 15799, 47397, 446597, 1339791, 3126179, 9378537, 16524089, 27242417, 49572267, 81727251, 115668623, 190696919, 347005869, 572090757, 1007969429, 3023908287, 7055786003, 21167358009]

約数ペア:

[(1, 21167358009), (3, 7055786003), (7, 3023908287), (21, 1007969429), (37, 572090757), (61, 347005869), (111, 190696919), (183, 115668623), (259, 81727251), (427, 49572267), (777, 27242417), (1281, 16524089), (2257, 9378537), (6771, 3126179), (15799, 1339791), (47397, 446597)]